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Synthesis of New Chalcogenide Materials. The Novel One-Dimensional Semiconductor K4 Ti3 S14

Published online by Cambridge University Press:  25 February 2011

Steven A. Sunshine ,
Doris Kang  and
James A. Ibers
Steven A. Sunshine
Affiliation:
Northwestern University, Department of Chemistry, Evanston, Illinois 60201
Doris Kang
Affiliation:
Northwestern University, Department of Chemistry, Evanston, Illinois 60201
James A. Ibers
Affiliation:
Northwestern University, Department of Chemistry, Evanston, Illinois 60201
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Abstract

The use of A2 Q/Q melts (A - alkali metal, Q - S or Se) for the synthesis of new one-dimensional solid-state materials is found to be of general utility and is illustrated here for the synthesis of K4 Ti3 SI4. Reaction of Ti metal with a K2 S/S melt at 375°C for 50 h affords K4 Ti3 SI4. The structure possesses one-dimensional chains of seven and eightcoordinate Ti atoms with each chain isolated from all others by surrounding K atoms. There are six S-S pairs (dave - 2.069(3) Å) so that the compound is one of TiIV and may be described as K4 [Ti3 (S)2 (S2)6]. Electrical conductivity measurements indicate that this material is a semiconductor.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 97: Symposium I – Novel Refractory Semiconductors , 1987 , 391
Copyright
Copyright © Materials Research Society 1987

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References

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